49640131 has 4 divisors (see below), whose sum is σ = 50696352. Its totient is φ = 48583912.

The previous prime is 49640113. The next prime is 49640137. The reversal of 49640131 is 13104694.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49640131 - 2²³ = 41251523 is a prime.

It is a super-2 number, since 2×49640131² = 4928285211394322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49640131.

It is not an unprimeable number, because it can be changed into a prime (49640137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528040 + ... + 528133.

It is an arithmetic number, because the mean of its divisors is an integer number (12674088).

Almost surely, 2^49640131 is an apocalyptic number.

49640131 is a deficient number, since it is larger than the sum of its proper divisors (1056221).

49640131 is a wasteful number, since it uses less digits than its factorization.

49640131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056220.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 49640131 is about 7045.5752781444. The cubic root of 49640131 is about 367.5171750654.

The spelling of 49640131 in words is "forty-nine million, six hundred forty thousand, one hundred thirty-one".